forked from zhurui/management
79 lines
3.2 KiB
JavaScript
79 lines
3.2 KiB
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
const os = require("os");
|
||
|
|
const utils = require("loader-utils");
|
||
|
|
const cloneDeep = require("clone-deep");
|
||
|
|
const path = require("path");
|
||
|
|
const proxyCustomImporters = require("./proxyCustomImporters");
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Derives the sass options from the loader context and normalizes its values with sane defaults.
|
||
|
|
*
|
||
|
|
* Please note: If loaderContext.query is an options object, it will be re-used across multiple invocations.
|
||
|
|
* That's why we must not modify the object directly.
|
||
|
|
*
|
||
|
|
* @param {LoaderContext} loaderContext
|
||
|
|
* @param {string} content
|
||
|
|
* @param {Function} webpackImporter
|
||
|
|
* @returns {Object}
|
||
|
|
*/
|
||
|
|
function normalizeOptions(loaderContext, content, webpackImporter) {
|
||
|
|
const options = cloneDeep(utils.getOptions(loaderContext)) || {};
|
||
|
|
const resourcePath = loaderContext.resourcePath;
|
||
|
|
|
||
|
|
options.data = options.data ? (options.data + os.EOL + content) : content;
|
||
|
|
|
||
|
|
// opt.outputStyle
|
||
|
|
if (!options.outputStyle && loaderContext.minimize) {
|
||
|
|
options.outputStyle = "compressed";
|
||
|
|
}
|
||
|
|
|
||
|
|
// opt.sourceMap
|
||
|
|
// Not using the `this.sourceMap` flag because css source maps are different
|
||
|
|
// @see https://github.com/webpack/css-loader/pull/40
|
||
|
|
if (options.sourceMap) {
|
||
|
|
// Deliberately overriding the sourceMap option here.
|
||
|
|
// node-sass won't produce source maps if the data option is used and options.sourceMap is not a string.
|
||
|
|
// In case it is a string, options.sourceMap should be a path where the source map is written.
|
||
|
|
// But since we're using the data option, the source map will not actually be written, but
|
||
|
|
// all paths in sourceMap.sources will be relative to that path.
|
||
|
|
// Pretty complicated... :(
|
||
|
|
options.sourceMap = path.join(process.cwd(), "/sass.map");
|
||
|
|
if ("sourceMapRoot" in options === false) {
|
||
|
|
options.sourceMapRoot = process.cwd();
|
||
|
|
}
|
||
|
|
if ("omitSourceMapUrl" in options === false) {
|
||
|
|
// The source map url doesn't make sense because we don't know the output path
|
||
|
|
// The css-loader will handle that for us
|
||
|
|
options.omitSourceMapUrl = true;
|
||
|
|
}
|
||
|
|
if ("sourceMapContents" in options === false) {
|
||
|
|
// If sourceMapContents option is not set, set it to true otherwise maps will be empty/null
|
||
|
|
// when exported by webpack-extract-text-plugin.
|
||
|
|
options.sourceMapContents = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// indentedSyntax is a boolean flag.
|
||
|
|
const ext = path.extname(resourcePath);
|
||
|
|
|
||
|
|
// If we are compiling sass and indentedSyntax isn't set, automatically set it.
|
||
|
|
if (ext && ext.toLowerCase() === ".sass" && "indentedSyntax" in options === false) {
|
||
|
|
options.indentedSyntax = true;
|
||
|
|
} else {
|
||
|
|
options.indentedSyntax = Boolean(options.indentedSyntax);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Allow passing custom importers to `node-sass`. Accepts `Function` or an array of `Function`s.
|
||
|
|
options.importer = options.importer ? proxyCustomImporters(options.importer, resourcePath) : [];
|
||
|
|
options.importer.push(webpackImporter);
|
||
|
|
|
||
|
|
// `node-sass` uses `includePaths` to resolve `@import` paths. Append the currently processed file.
|
||
|
|
options.includePaths = options.includePaths || [];
|
||
|
|
options.includePaths.push(path.dirname(resourcePath));
|
||
|
|
|
||
|
|
return options;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = normalizeOptions;
|